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(No Model.)'

H. W. HADLEY & W. L. GROUT.

MECHANICAL MOVEMENT.

Patented May 8 1883.

ERS. Pmwumo m mr. Washlnginm me. 1

' UNITED STATES PATENT OFFICE.

HORACE WV. HADLEY AND WILLIAM L. GROUT, OF ORANGE, MASS.

SPECIFICATION forming part of Letters Patent No. 277,025, dated May 8,1883.

To all whom it may concern:

Be it known that we, HORACE-W. HADLEY and WILLIAM L. GROUT, both ofOrange, county of Franklin, State, of Massachusetts, have invented anImprovement in Mechanical Movements, of which the following description,in connection with the accompanying drawings,is a specification, likeletters on the drawings representing like parts.

Our invention relates to a mechanical movement or mechanismfortransmitting motion shown as arranged to produce an oscillating orrocking movement in a shaft, such movement being derived from a rotatingshaft. The oscillating or rock shaft is provided with a crank, connectedby a link with one arm of a lever, the other arm of which is connectedwith a link or pitman actuated by an eccentric or crank on the rotatingshaft, to thus impart a rocking movement to the said lever, which inturn imparts an oscillating movement to the rock-shaft. By varying thelengths of the lever-arms and the relative positions of the variouspivotal or connecting points the amount of oscillating movement may bevaried, and it is also possible 'to vary the relative speed of differentparts of the oscillating movement.

Figure 1 is a front elevation of a mechanical movement embodying thisinvention, the parts being shown in the position occupied by them whenat one extreme of the oscillating movement, the bearing of theoscillating shaft not being shown; Fig. 2, a side elevation thereof; andFig. 3, a front elevation similar to Fig. 1, but with the parts in theirother extreme position.

The main or actuating shaft 0, supported in i suitable bearings, (notshown in the drawings,)

is provided with an eccentric, b, the strap 0 of which is connected withan eccentric-rod or pitman, d, the other end of which is connected withone armof a lever, 0, (shown as mounted on a pivot or fulcrum pin,f,having a bearing in the frame-work i.) The lever e is'thus rocked oroscillated back and forth on its fulcrum at each rotation of the shafta, and its other arm is connected with a link, m, itself connected withthe crank-pin n of a crank, 0, fixed upon the shaft 1', to which arocking or oscillating movement is thus imparted, the said shaft beingsupported in any suitable bearings, one

of which is shown at t, Fig. 2.

It will be readily understood that by varying the relative length of thecrank 0 and arms Application filed March 26, 1883. (No model.)

of the lever d and throw of the eccentric I), or amount of movement ofthe pitman d, the actual length of oscillating movement of the shaft g,as well as its amount relative to that of the lever 0, may be varied. Asshown in this instance, the arm of the lever d connected with the crank0 is about double the length of the said crank, and also 'of the otherarm of the said lever connected with the pitman d,

and the throw of the eccentric is such as to give the lever e anoscillating movement of about ninety degrees, and it in turn imparts anoscillating movement of about one hundred and eighty degrees to the'shaft 1*. It is also possible by varying the relative position of theshaft 0', fulcrumf, and points of attachment of the link on and pitman dto the lever e to produce a variable speed in the oscillation of theshaft r. In the arrangement shown the link m is somewhat nearer aposition at right angles to the crank o in Fig. 3 than in Fig. 1, andconsequently the movement of the shaft 9 is more rapid when arriving atand starting from the position shown in Fig. 3 than when arriving at andstarting from the position shown in Fig. 1; or, in other words, there isa slight dwell at and near the position shown in Fig. 1.

It is obvious that the pitman or connecting rod (1 may be actuatedfromthe shaft to by a crank, cam, or equivalent device constituting themeans for actuating the rocking lever.

We claim- 1. The combination, with a rocking leverand means to actuateit, of the oscillating shaft having a crank and crank-pin, and a linkconnecting the latter with the said rocking lever, substantially asdescribed.

2. The combination of the main shaft a and rocking lever actuatedthereby with the oscillating shaft and its crank, and the linkconnecting the latter with the rocking lever, substantially asdescribed.

3. The shaft a, eccentric b, or equivalent thereon, and pitman, combinedwith the rocking lever, link, crank, and shaft 1, all to operate asdescribed, whereby an oscillating movement is imparted to the saidshaft.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

H. W. HADLEY.

Witnesses: WM. L. GROUT.

ABIJAH FRENCH, M. O. FRENCH.

